Other commercial technologies involve Statoil patented Compact Electrostatic Coalescer (CEC™) technology (Fig. 7). Natco's Dual Polarity ® electrocoalescer uses simultaneous AC and DC electric field. Recently, Natco patented an upgraded Dual Frequency ® technology which uses a high base frequency optimized …

Keywords: end-of-life vehicles, passenger vehicle plastics, high-voltage electrostatic separation, bumpers, high-valued added reuse 1. Introduction With the development of lightweight technology, plastic is now widely used in the automotive industry because of its high safety, low cost, durability, and smaller weight than other materials [1].

Powder Technology. Volume 327, March 2018, Pages 89-95. A new method to produce high voltage static electric load for electrostatic separation – Triboelectric charging. Author links open overlay panel Tahsin Onur Dizdar, ... Electrostatic separation, which covers electrostatic, electrodynamic, and triboelectric separation, …

The emulsion is broken by a high voltage electrostatic field within the gravity settler tank. The brine water phase containing extracted salts and other impurities is removed from the bottom for treatment. ... Our VIEC separation technology achieves low water contents in the oil stream, which reduces the number of downstream desalters required ...

With this configuration, the tests were made for a high voltage value of 18 kV. This value had been chosen because a higher one attracts aluminum particles and so diminishes the separation efficiency. However, at this high-voltage level, the corona effect is already effective. Table 1 and Fig. 4 show the experimental results of this separation.

Clean and efficient separation is an important requirement for the high-value-added recycling of end-of-life automobile polymers. In this study, polymer particles for vehicles were considered as research objects, and a two-stage electrostatic separation device was designed to separate a mixture of three polymer particles.

Furthermore, the separation test results revealed that non-conductive and conductive particles can be separated in an electrostatic separator using the high voltage directly produced by tribocharging.

biodiesel production technology changes, all aspects of the process are being tested and refined for faster, easier, and more efficient production. ... electrostatic field caused by a high voltage and low amperage AC (more than kV) current (mA) is used. ... considered. in order to evaluate the Concluding electrostatic separation method, effect ...

The Dual Frequency® technology uses a high base frequency (optimized in the kHz region to limit the time for voltage decay) which is amplitude-modulated with a pulse frequency (0.2 to 2 Hz) tailored to maximize energy absorption by the dispersed phase drops. According to Natco, the separation efficiency gain is due to the higher …

Results showed that electrostatic field intensity (higher voltage and lower current) has most effectiveness in reducing the glycerin separation time but observations showed that the higher voltage may cause a negative impact on the biodiesel and And safety considerations should be considered further. 110 Glycerin separation time (Sec) 100 ...

The paper aims to separate three kinds of polymer particles by electrostatic separation technology and propose a solution to effectively predict the separation results by analyzing the motion of ...

Electrostatic treaters use high voltage alternating current (AC) fields, or to a lesser extent direct current (DC) fields, to promote the coalescence of water droplets in crude oil to improve the ...

separation vessel) and an electrostatic coalescer [1]. Technology description The application of electrostatic force to break oil-water emulsions and increase water droplet size is an old and proven technology [2]. Traditional electrocoa-lescers however, must be the last ele-ments in the separation process, as a high percentage of water will ...

The experiments were carried out using a belt-type electrostatic separator (Fig. 1, a) which consists of a metal-belt conveyor, 700 mm in length and 70 mm in width, a vibratory feeder, a rotary cylindrical electrode with a diameter of 50 mm and a length of 70 mm energized from a fully adjustable DC high-voltage power supply (Model SPL 300, …

The change of the high voltage level, roll speed, radial position of the corona electrode, and angular position of the corona electrode has more influence on silicon separation efficiency than silver separation efficiency. ... Electrostatic separation technology has been proven to be an effective and environmentally friendly way of recycling ...

Triboelectric separation, is a dry cleaning technology for the beneficiation of mineral ores, which utilizes the different electrical conductivities between mineral particles (Dizdar et al., 2018). ... Experimental study of a modified dual-type high-voltage electrode for electrostatic separation applications.

Electrostatic separation, a dry technology based on the different triboelectric charging properties of materials, has been used for plant protein separation …

Vessel Internal Electrostatic Coalescer (VIEC™) technology developed by Hamworthy (a Wartsila company) is claimed to be the first electrocoalescence …

Electrostatic Separation. Electrostatic separation is frequently used in the separation of equipment containing copper, aluminum, and insulating materials, which is also the case of WEEE. It represents a modern and useful technology for the recycling of industrial waste materials [24, 25]. Electrostatic separation sorts substances with ...

Download scientific diagram | Control variables of an electrostatic separation process: high-voltage level U roll speed n; angular ( = 30 ) and radial (s = 40 mm) position of the corona electrode ...

This technology fundamentally uses the differences between inherent electrical properties of various materials in a feed to separate them by utilizing a high …

An electrode system supplied with high voltage is used for this: negatively charged particles are attracted by a positive electrode, whereas positively charged particles are repelled (Fig. 3). ... The electrostatic separation technology from hamos, which is used by companies worldwide, is particularly convincing for separation tasks that are ...

High-voltage electrostatic technology has a significant effect on the separation of small-particle-sized mixed particles compared with eddy current separation . Fangyang Yuan [ 22 ] achieved the separation of mixed particles by applying a static electric field in the classification area of the wet classifier.

Lower electricity consumption leads to a reduction in emissions. In addition, this advanced AC-DC power unit—sometimes called an electrostatic treater transformer—decreases total connected power load and consequently, the heavy-duty high-voltage electrical infrastructure for power generation, power delivery on site, or both.

The technology for electrostatic enhancement of coalescence of water droplets in oil emulsions is critically reviewed. Historically, the electrostatic coalescer was invented for the petroleum-related industries in California [US Patent 987. 115 (1911)].. Nowadays, this technology is generally considered for the separation of an aqueous …

The factors influencing the efficiency of the electrostatic separation process include the high-voltage level, the electrode configuration, the feed rate, the particle size, and the roll speed ...

While initial instrument settings, such as the angle of the dividing flap or high voltage, can influence the separation efficiency, the determining factor for the final mass reduction seems to depend on sediment composition. ... Recycling- and Separation Technology [WWW Document]. Electrostatic Separators.

Abstract: Optimization of electrostatic separation processes demands the control of a multitude of factors, including the characteristics of the granular mixtures …

Electrostatic-separation utilizes the difference in electrical conductivity between the various minerals in a feed material to produce differential movement in the mineral …

static charging with regard to electrostatic separation was determined, and a charge–mass ratio distribution of mixed-polymer particles, that is, polyamide (PA), polypropylene (PP), and ...